17 lines
369 B
Markdown
17 lines
369 B
Markdown
---
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title: atob
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tags: node,string,beginner
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---
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Decodes a string of data which has been encoded using base-64 encoding.
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- Create a `Buffer` for the given string with base-64 encoding and use `Buffer.toString('binary')` to return the decoded string.
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```js
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const atob = str => Buffer.from(str, 'base64').toString('binary');
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```
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```js
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atob('Zm9vYmFy'); // 'foobar'
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```
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